Honestly I dont see much of a libido effect, but I also generally have a pretty high libido anyway... I never lose the morning wood on cycle, and typically my sex drive is not particularly affected by going on or coming off cycle, or being off... its pretty much always "on", so I dont know if its a situation where you only see the effect if there is a deficit... but while (after the 15 or 20 minutes of skin flushing and mild naseau that I always experience - its mild enough that if I just watch TV or something I can ignore and dont notice it) I am always ready to go sexually after a shot of MT2, I am not MORE ready to go than I would have been normally, and I dont really see much of a performance difference. To be honest though I think that is just me, to many people love the stuff for the libido effect - I also dont notice anything different on 12 caps of unleashed/post cycle. If you are only interested in it for the libido get PT141 and you wont have to worry about it affecting your skin... maybe if I was able to run a higher dose I would get some sexual benefit? .5mg/day certainly doesnt seem to do much for me!